Is the clicking related to your speed? (Get faster and slower?) If so, then its probably a brake issue. IF you hear more of a
'creaking' sound.. then it is related to a suspension part. How old are the Struts? You should be able to tell if the struts are bad by pushing the car up and down in the rear. If the car "bounces" up and down like it's on springs, then it probably is!
My rear right makes a creaking noise as I go slowly out of my driveway (5" tall Curved-curb) or whenever one corner of the car has a considerable elevation change. It is a Rubber Bushing.
I suggest you jack the car up and listen as the wheel falls down from the wheel well. Get an Idea of from where the noise is coming from. Take the Tire off and spray some WD-40 into ONE bushing at a time to locate the culprit. The WD-40 will work for a week of regular driving where I live. It is only a temporary fix, but if it is a bushing, I was able to find it this way.
phaZed